| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | On my '37 GMC T-18, I was able to remove the inside the frame steering box mounted just in front of the rear spring hanger to a Saginaw power steering outside the frame box('94/'95 P3500 HD, baby school bus) to just to the rear of the front spring hanger, both boxes were fore and aft movement, just had to shorten and rethread the drag link, two U-joints in the driveshaft.
Your larger GM truck may be similar.
Ed
Last edited by EdPruss; 02/09/2019 6:16 PM.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| 
